Fenbendazole 444 , traditionally used as an antiparasitic medication in veterinary medicine, is now being explored for its potential effects on erectile dysfunction (ED). Although primarily designed to eliminate parasites, researchers are investigating whether this drug could influence mechanisms in the body that impact sexual function. This exploration is part of a broader trend in medical science where existing drugs are repurposed to address new health challenges, offering hope for those who haven’t found success with conventional ED treatments.